'''
最终效果
'''
# 导入海龟库
import turtle
from turtle import *


def drawRound(line_colors,round_size):
    angle = 360 / round_size + 1
    color_size = len(line_colors)
    for x in range(200):
        pencolor(line_colors[x % color_size])
        circle(x)
        left(angle)
    return


turtle.tracer(1)
turtle.speed(100)
# 拿到海龟画笔
p = turtle.Pen()
# 循环100次
turtle.bgcolor("black")
colors = ['purple', 'yellow', 'blue', 'red']
drawRound(colors,4)

turtle.done()
